Phys. Rev. Lett. 83, 737–740 (1999)Multi-MeV Ion Production from High-Intensity Laser Interactions with Underdense PlasmasReceived 1 December 1998; published in the issue dated 26 July 1999 Experiments were performed using high-power laser pulses (greater than 50 TW) focused into underdense helium, neon, or deuterium plasmas (ne∼5×1019cm-3). Ions having energies greater than 300 keV were measured to be produced primarily at 90° to the axis of laser propagation. Ion energies greater than 6 MeV were recorded from interactions with neon. Images of the ion emission were also obtained, and it is possible that spatially resolved measurements of the ion energy spectrum can provide a method to estimate the intensity of the focused radiation in the interaction region. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.737
DOI:
10.1103/PhysRevLett.83.737
PACS:
52.40.Nk, 52.70.Nc, 52.75.Di
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